Evidence map›Paper›PMID 33888752›Full record

ArticleScientific reports2021

Determining the optimal pulse number for theta burst induced change in cortical excitability.

Daniel M McCalley, Daniel H Lench, Jade D Doolittle, Julia P Imperatore, Michaela Hoffman, Colleen A Hanlon

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  9. Accelerated sequential bilateral theta-burst stimulation in major depression: an open trial.European archives of psychiatry and clinical neuroscience · 2024
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  13. Females have shorter scalp-to-cortex distances and receive stronger TMS electrical fields: Implications for clinical treatment.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  14. Neuromodulation of Cortical Targets in Freezing of Gait.The European journal of neuroscience · 2026
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Daniel M McCalley *Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
Daniel H Lench *Department of Neurology, Medical University of South Carolina, Charleston, SC, USA.
Jade D DoolittleDepartment of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
Julia P ImperatoreDepartment of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
Michaela HoffmanDepartment of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
Colleen A HanlonDepartment of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA. chanlon@wakehealth.edu.

Funding

TREATING ETHANOL WITHDRAWAL WITH LORAZEPAM/NALTREXONEP50AA010761 · NIAAA · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI HOWARD C. BECKER · 1996 to 2026
$46.8M
TRAINING IN ALCOHOL TREATMENT RESEARCHT32AA007474 · NIAAA · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI John J. Woodward · 1987 to 2026
$8.5M
South Carolina Clinical & Translational Research Institute (SCTR)TL1TR001451 · NCATS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI FEGHALI-BOSTWICK, CAROL A. · 2015 to 2024
$4.6M
Longitudinal Investigation of TMS as a Tool to Improve Alcohol Treatment OutcomesR01AA027705 · NIAAA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI ADDICOTT, MERIDETH A., LAURIENTI, PAUL · 2019 to 2023
$3.4M
Evaluating Neural Architecture as a Novel Biomarker for TMS Efficacy in AUDF31AA028426 · NIAAA · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI MCCALLEY, DANIEL · 2020 to 2021
$92k
NCATS NIH HHS TL1 TR001451NIAAA NIH HHS F31 AA028426NIAAA NIH HHS P50 AA010761NIAAA NIH HHS R01 AA027705NIAAA NIH HHS T32 AA007474
6 · The paper itself

Abstract

Theta-burst stimulation (TBS) is a form of non-invasive neuromodulation which is delivered in an intermittent (iTBS) or continuous (cTBS) manner. Although 600 pulses is the most common dose, the goal of these experiments was to evaluate the effect of higher per-dose pulse numbers on cortical excitability. Sixty individuals were recruited for 2 experiments. In Experiment 1, participants received 600, 1200, 1800, or sham (600) iTBS (4 visits, counterbalanced, left motor cortex, 80% active threshold). In Experiment 2, participants received 600, 1200, 1800, 3600, or sham (600) cTBS (5 visits, counterbalanced). Motor evoked potentials (MEP) were measured in 10-min increments for 60 min. For iTBS, there was a significant interaction between dose and time (F = 3.8296, p = 0.01), driven by iTBS (1200) which decreased excitability for up to 50 min (t = 3.1267, p = 0.001). For cTBS, there was no overall interaction between dose and time (F = 1.1513, p = 0.33). Relative to sham, cTBS (3600) increased excitability for up to 60 min (t = 2.0880, p = 0.04). There were no other significant effects of dose relative to sham in either experiment. Secondary analyses revealed high within and between subject variability. These results suggest that iTBS (1200) and cTBS (3600) are, respectively, the most effective doses for decreasing and increasing cortical excitability.

Indexed as

Cortical ExcitabilityAdultElectromyographyEvoked Potentials, MotorFemaleHumansMaleTheta RhythmTranscranial Magnetic StimulationYoung Adult

Identifiers

PMID33888752
PMCPMC8062542

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.